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Figure 1 | Frontiers in Zoology

Figure 1

From: Moving polewards in winter: a recent change in the migratory strategy of a pelagic seabird?

Figure 1

Carbon stable isotope ratios and breeding sites. A. Carbon stable isotope ratios in Southern Ocean plankton and predators (fish and squid), The sample size refer to discrete species × location data points. An interpolated isoscape was derived from phytoplankton data. Data points are from a review of available literature. B. Breeding sites of the two study species (KG = King George Island, South Shetlands, FI = New Island, Falkland Islands/Malvinas), distribution of isotope values from the interpolated isoscape in the study ares, and pictures of corresponding chicks. C. Stable isotope ratios of feathers representing diet during the breeding season (chick feathers and induced adult feathers) and naturally moulted adult feathers (representing the interbreeding season), showing opposite movement of Thin-billed prions and Wilson's storm-petrels during migration

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